Enough information to order S 140 units.

Question

I am going to need 2 2-coil units for a tilt out single hung window. The old units were pretty completely destroyed removing them. I think I need 2 15-150 D units and 4 S160 series springs. The old springs were 1/2 " wide and marked "#6.5." I see you have 6.5 lb springs available in this series. I would need 4. I also need covers for the 15-150 D units. I do not see the covers offered. But then I see your Category S 140 offering which includes a sash carrier, a cover, and the appropriate number of springs. the old sash carrier carries the numbers 5.345.638, 6.584.644 B2 and Part# 801020. This is not an order. It's a question about whether I have sufficient information to correctly order w S 140 units. I can weigh the lower sash if necessary.

Tom · Accepted Answer

Thanks for reaching out to us. You may be able to use our Series 140 in your window, but there are a few things to consider before you try it. Namely, you have to make sure that the old balance assembly has the same width and thickness (1-1/4" x 9/16"). Otherwise the Series 140 won't fit properly in the track.

The second thing you have to consider is that the Series 140 has a different style metal cam than most other pivot shoe styles, so your old pivot bars may also not fit.

We generally recommend sticking with what you have already. Looking at the parts you picked out, the 15-150D cover and S160-6 spring are perfectly compatible. Is there any reason you don't think these will work for your window? You did say that you don't see the covers offered, but I'm a little confused by that statement. The 15-150D itself is the cover. Can you clarify?